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env_test.go
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env_test.go
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package cli
import (
"testing"
"github.com/nikandfor/assert"
"nikand.dev/go/cli/flag"
)
func TestEnvfile(t *testing.T) {
readFile = func(n string) ([]byte, error) {
assert.Equal(t, ".env", n)
return []byte(`PREF_F1=1
PREF_F2 2
# PREF_F3=a
PREF_F4 abc def
NOT_PREF_F3=3`), nil
}
var ok bool
c := &Command{
Name: "testcmd",
Args: Args{},
Action: func(c *Command) error { ok = true; return nil },
Flags: []*Flag{
flag.New("f1", "", ""),
flag.New("f2", 1, ""),
flag.New("f3", "def", ""),
flag.New("f4", "", ""),
flag.New("f5", "", ""),
flag.New("f6", 0, ""),
EnvfileFlag,
},
EnvPrefix: "PREF_",
ParseEnv: func(c *Command, env []string) ([]string, error) {
rest, err := DefaultParseEnv(c, env)
assert.NoError(t, err)
if err != nil {
return nil, err
}
return rest, nil
},
}
err := Run(c, []string{"cmd", "--envfile=.env", "a", "-f6=9"}, []string{"PREF_F5=4"})
assert.NoError(t, err)
assert.Equal(t, Args{"a"}, c.Args)
assert.True(t, ok, "command not called")
assert.Equal(t, "1", c.Flag("f1").Value)
assert.Equal(t, 2, c.Flag("f2").Value)
assert.Equal(t, "def", c.Flag("f3").Value)
assert.Equal(t, "abc def", c.Flag("f4").Value)
assert.Equal(t, "4", c.Flag("f5").Value)
assert.Equal(t, 9, c.Flag("f6").Value)
assert.Equal(t, []string{"NOT_PREF_F3=3"}, c.Env)
}